Asbestos-separator.



PVS. MoKAY. ASBBSTOS SEPABATOR. APPLIUATION FILED 11u12, 1910.

1,010,779. Patented De0.5,19'11 P. s. MOKAY. 'ASBESTOS SEPARATOR. APPLICATION FILED MAR. 2, 1910.

2 SHEETS-SHEET z.

UNITED STATES `rarrziv1`. OFFICE.

FREDERICK S. MCKAY, OF SHERBROOKE, QUEBEC, CANADA, ASSIGNOR .OFONE-,FOUBT i TO JAMES H. -BURY, -OF CASPER, WYOMING.

I To all whom it may concern:

ASBESTOS-SEPARATOB.

Specification .ef Letters Patent. Application mea March 2, 1910. serial No. 546,916.

Patented Dee. 5', 1911.

Be it known that I, FREDERIK a citizen of Canada, residing at Sherbrooke,

county of Sherbrooke, Province of Quebec, Canada, have invented certain new and usefull Improvements Asbestos-Separators; and I do declare the-.following to be a full, clear, and .exact description of the invention, such as will enable others skilled in the arttov which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and guresg of reference marked-thereon, which form a part of this specification.

The invention to be hereinafter described relates to separators, and particularly to asv- -bestos and similar separators.

In order to more clearly disclose the construction,- operation. and use of the invention, ,reference shouldbe had to the accompanying drawings forming part of the present application. l

Throughout the several gures of the drawings, like reference characters designate the same parts.

In the drawings: Figure 1 is a vertical longitudinal section through the machine. Fig. 2 is a vertical cross section on line 2-2 of Fig. l, looking in the direction of the arrow. Fig. 3 is a horizontal section on line 3-3 of Fig. 1, and. Fig. l1-is a top planview of the preferred construction Aof screen.

The general type of asbestos separator heretofore in use has employed suction devices for separating the asbestos from the crushed rock. This, of course, necessitated the use of powerful air pumps and their costly apparatus. The present invention is so constructed asV to completely avoid this and many other objections. y

A suitable framework 1 of any desired form maybe constructed. This frameworksupports a casing 2, within which the co'perating plarts of the separator are mainly supported. xtending within this casing is swmginglysuspended an inclined screen or' sifter 3, hav# ing a` graduated mesh or perforations, increasing in size from the upper to the lower end. This screen may be suspended by links 4, or other connections, from the frame'. Arod 5 may-.be used to vconnect the upper end of the sifter to a pitman, wrist pin or other moving4 part of :the general machinery of the plant to effect reciproca'tion of the sifter. The crushed. rock ber will be fed into thetoward the lower end as the sifter is recipupper end of the sifter, and gravitate slowly rocated. As it moves along the. sifter the several grades of rock will pass through the different grades of openings in the screen, the largest vpieces passingV out at the end of the screen. The upper end of the screen' projecting beyond the casing 2 and adapted to receive the crushed asbestos rock from the crusher -1 is provided witha very Afine mesh for the separation of sand or similar pulverulent matter. rThis very ne matter contains no ber of any real value. To that end, a hopper 6 is placed in such position as to receive the material sifted from the upper end of the screen and to conduct-it to a Waste'heap or the like in order that it may not be run through the separator and cause extra work.- Beneath the sifter is mounted `an inclined traveling apron or belt 7 movlng on suitable rolls or cylinders 8. It is desired to keep the several grades or sizes of ber coming from the sifter separated. To this end, partitions 9 are provided, the distance between two partitionsl being equal lto the. length of one ofthe perforated or screen sections of the sifter. The apron or belt is made of duck or similar fabric on which theasbestos bers will catch. Beneath the lower end of the apron is mounted an inclined chute 10 leading to a hopper 11 by which the material separated from the ber may' be delivered from the machine to a waste heap or the like.

Beneath the upper end of the lower run of the apron is mounted a combing roll 12 adapted to brush the bers from the face of f .the-apron. The portionof the casing 2 below the combingroll 12 is formed into an I inclined chute by which the separated asbestosv bers maybe delivered to bags or other receptacles.

It will be noted-that the present machine.

makes simultaneous use of two principles of separation hitherto not used. in this art.- The -rst of these is the tendency of one ber miA e to stick or adhere to another, and the second is that of gravity separa-tion ofV relatively i heavier parts from relatively lighter ones.

As will Yappear in Fig. 4,fthe grating 3 at vlower end of the screen 4. is' cut oil' obliquely so that the rock passing therefrom will lnot fall inthe same place on the apron,

thus distributing the rock and adding to the life of theapron.

The bperation of the machine is as follows: Crushedasbestos vrock is fed upon the' tles downward along the screen the several,

grades of fiber will pass through the various graded portions of the screen and fall bctween the partitions 9 onto the several sections of the inclined apron or belt, which is driven continuously in an upward direction by suitable belt and pulley `or similar connections with the machinery of the plant. As the mixed rock and fiber strikes the inclined fabric belt or apron the rock. will bound downward toward the chute 10 while the fiber will stick on the duck or similar material of the belt and be carried upward, being taken from the underface of the apron by the combing roll 12, which may be driven by `belt and pulley connections from the upper cylinder or drum of the apron 7. The machine may, of course, be equally 'well used for separation of chai from grain, and for many other uses in which the same principles of separation may be employed.

It is clear'that changes may be made in the construction, tion of the several parts of the invention, without in any way departing from the field and scope of the same, and it is meant to include all such within this application wherein only a preferred form has been disclosed.

. Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A separatorof the character described, including a plurality of suspended spaced- Aapart partitions, a reciprocating screen divided into sections of differentiated or graded mesh, and means arranged below said screen for receiving the material passing therethrough, said partitions being arlsaid sections and having t arranged contiguous to and of a correspond-v ing inclination with that of said material arrangement and disposi,

inclination ranged transversely. of and adapted to receive said screen in their upper edges along the linesof separation between said sections .having their lower edges arranged contiguous and conforming to the upper surface of said material receiving means.'

2. A separator for treating asbestos, in-V cluding a plurality of suspended spacedapart partitions, an inclined reciprocating screen divided into sections of graded mesh, and traveling means arranged below said screen and at an inclination atright angles to that of said screen for receiving the material passing through the latter, said par-` titions being arranged transversely of and adapted to receive said screen in their upper edges along the lines of se aration between lieir lower `edges receiving means. Y

3. A separator for treating asbestos in cluding a plurality of `-suspended spacedapart partitions, an inclined reciprocating screen divided into sections of graded mesh, traveling means arranged below said screen passing through the latter, said partitions being arranged transversely of and ada ted to receive said screen in their upper e ges along the lines of separation between'said sections and having their lower edges arranged contiguous to and of a corresponding with that of said material receiving means, and means arranged below and at the delivery end of said material receiving means for conveying away the graded material. Y

In testimony whereof, I aiix .my signature, in presence of two witnesses.

FREDERICK S. MCKAY. Witnesses:

ALEXINA JoNcAs, G. W. BonLAsT.

Iand at an inclination at right angles to that of said screen for receiving the material I 

